Three passes of Taoism: Tiandao School, an important training method of Taoism, has been a commonly used method to guide health preservation since ancient times. Since the Song and Yuan Dynasties, Taoism has changed from external alchemy to internal alchemy, which is characterized by taking essence, qi and spirit as the exercise objects, emphasizing that internal qi is in harmony with spirit and promoting the flow of internal qi around meridians. This technology is divided into three stages. The first stage is the first stage, in which gas is refined and refined, which is called "Zhou Xiaotian". After three stages, the qi circulates in the two veins of Ren Du. The second stage is to pass through the customs and refine the spirit, that is, "big Sunday" and pass through the eight classics and twelve classics; The third stage is to go to Shangguan, refine and empty, and pursue the supreme realm of immortals. These three practices are also called gathering three flowers at the top.

Baozhi: In ancient times, Taoism was called Ganoderma lucidum. Ganoderma lucidum is a kind of mushroom with a kidney-shaped cap, reddish brown or deep purple, ring-shaped and shiny. It can be used as medicine and has nourishing effect.